Geiger Miller counter
The Geiger M ü ller counter, also known as the Geiger counter, is a counting instrument specifically designed to detect the intensity of ionizing radiation (alpha particles, beta particles, gamma rays, and X-rays). Using an inflatable tube or chamber as a probe, when the voltage applied to the probe reaches a certain range, each pair of ions produced by ionization of the radiation inside the tube can amplify and generate an electric pulse of the same size, which is recorded by the connected electronic device, and thus measure the number of rays per unit time.
U1602B Dual Trace Oscilloscope
3D model of multimeter
3D model of pressure gauge
A pressure gauge is an instrument used to measure air pressure, which can be classified into many types. Among them, a tire pressure gauge is a type of tire pressure gauge, which consists of a head, piston, body, ruler, main spring, etc. The head only has one pressure measuring port, with a simple structure, small range, high accuracy, and easy use. It is suitable for measuring tire pressure in small vehicles such as micro cars and motorcycles.
Scientific instrument desktop centrifuge
astronomical observation instrument
An observational astronomical instrument of the first half of the 19th century used to determine the height of a celestial body above the horizon. It consists of a frame limited by two radii and a graduated arc, an observation telescope and a mirror system. The 1/5 arc is the fifth part of the circle, hence the name, similar to the quadrants, 1/6, and 1/8 (based on the fourth, sixth, and eighth parts of the circle, respectively). It is currently housed in the Jagiellon University Museum in Munich, Germany.
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